Updated 1.50pm.
MET EIREANN HAS issued a status yellow rainfall warning for Munster and Leinster.
The warning will come into effect from midnight until 9pm tomorrow.
Heavy rain is expected to come up from the south with up to 40mm expected, although larger totals are possible on high ground.
Meanwhile, snow is also expected to fall over hills and mountains tomorrow and Thursday.
While today is mild with temperatures between 13 and 15 degrees, temperatures are set to drop to five degrees tomorrow and go down to zero tomorrow night.
Met Eireann says an area of low pressure called a “polar low” will track over or near the north of the country tomorrow evening.
Thursday will be another cold day with temperatures dropping to as low as minus 2 that night.
Showers are expected to turn wintry with snow likely on the Wicklow Mountains.
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